In summary: I did get the ones about the earth's age and the nucleus.In summary, the Christian Science Monitor quiz is a fun way to test your scientific literacy. Most questions are about things you learned in school, but a few are more difficult. If you're not familiar with some ...
The atmosphere is made up of different gases. What is the most abundant gas in the atmosphere? A. Oxygen B. Nitrogen C. Carbon dioxide D. Hydrogen 相关知识点: 试题来源: 解析 B。解析:大气中含量最多的气体是氮气。A 选项氧气含量次之;C 选项二氧化碳含量较少;D 选项氢气含量极少。 反馈 收...
What is the main gas in the Earth's atmosphere? A. Oxygen B. Nitrogen C. Carbon dioxide D. Hydrogen 相关知识点: 试题来源: 解析 B。解析:地球大气中的主要气体是氮气。文章中有对大气成分的介绍。选项 A 氧气含量比氮气少。选项 C 二氧化碳是温室气体,但不是主要气体。选项 D 氢气在大气中的含量...
What is the second most abundant gas in the Earth's atmosphere? A. Oxygen B. Nitrogen C. Carbon dioxide D. Argon 相关知识点: 试题来源: 解析 A。解析:地球大气中第二丰富的气体是氧气,占大气总量约21%。氮气是最丰富的,约占78%。二氧化碳含量较少,氩气含量也比氧气少。
百度试题 结果1 题目What is the main gas in the atmosphere that plants need for photosynthesis? A. Oxygen B. Nitrogen C. Carbon dioxide D. Hydrogen 相关知识点: 试题来源: 解析 C。解析:植物进行光合作用需要二氧化碳。反馈 收藏
and power plants.Carbon dioxide is the most common of all the pollutants acting as greenhouse gases that heat up the atmosphere.Fortunately, however, carbon dioxide is captured naturally and stored in trees, soil, and plants.Scientists have termed this “carbon sequestration.”They have determined ...
百度试题 结果1 题目___ is more important, gas or electricity?A: WhatB: WhenC: WhyD: Which 相关知识点: 试题来源: 解析 D正确率: 64%, 易错项: C 略反馈 收藏
I sometimes have to take a super powerful laxative that will clear everything out. The downside is that it causes cramps and diarrhea, and I can't seem to stop going for several hours. During weeks when my constipation only lasts a couple of days, I have painful hemorrhoids from all the...
百度试题 结果1 题目What is the main component of natural gas? A. methane B. ethane C. propane D. butane 相关知识点: 试题来源: 解析 A。天然气的主要成分是甲烷。反馈 收藏
A. What B. When C. Why D. Which 相关知识点: 试题来源: 解析 D 句意:哪一个更重要,汽油还是电?考查疑问词辨析。What什么;When什么时候;Why为什么;Which哪一个。根据后面给出了选择范围gas or electricity可知,这里问的是“哪一个”。故选D。反馈 收藏 ...